unicode转为汉字

1,下面是文章地址：http://www.cnblogs.com/guardianf/archive/2012/08/21/2649147.html

主要是下面一个方法：

public static string UnicodeToGB(string text)
        {
            System.Text.RegularExpressions.MatchCollection mc = System.Text.RegularExpressions.Regex.Matches(text, "\\\\u([\\w]{4})");
            if (mc != null && mc.Count > 0)
            {
                foreach (System.Text.RegularExpressions.Match m2 in mc)
                {
                    string v = m2.Value;
                    string word = v.Substring(2);
                    byte[] codes = new byte[2];
                    int code = Convert.ToInt32(word.Substring(0, 2), 16);
                    int code2 = Convert.ToInt32(word.Substring(2), 16);
                    codes[0] = (byte)code2;
                    codes[1] = (byte)code;
                    text = text.Replace(v, Encoding.Unicode.GetString(codes));
                }
            }
            else
            {
 
            }
            return text;
        }

2,另外一篇文章：http://www.cnblogs.com/beer/archive/2010/06/09/1754901.html